Door locking device and construction machine including same

摘要

Disclosed are a door locking device which enables a user on the ground to easily open or close a side door even in the case where the height of the side door is changed, and a construction machine including the same. The door locking device, according to the present invention, comprises: a locking device case which is mounted on a side door; an operation handle which is rotationally fixed to the case; a striker which is mounted on a door frame for supporting the side door such that the side door can be opened or closed; a link which is rotationally fixed to the case and a lower end of which is connected to a rotation plate that is interlocked when the operation handle is operated; and a locking unit which is separated from the operation handle and connected to the upper end of the link so as to be mounted on the inside surface of the side door in the upward direction of the case, and which is interlocked by the link when the operation handle is operated so as to be locked to or released from the striker.

主权项

1. A door locking device comprising:
a locking device case mounted on a side door; a manipulation handle rotatably fixed to the case; a striker mounted on a door frame that openably/closably supports the side door; a link rotatably fixed to the case and connected at a lower end thereof to a rotary plate that operates in cooperation with the manipulation handle upon manipulating the manipulation handle; and a locking unit connected to an upper end of the link so as to be separated from the manipulation handle and mounted on an inner surface of the side door so as to positioned above the case so that the locking unit is operated in cooperation with the manipulation handle by the link so as to be locked to or unlocked from the striker when the manipulation handle is manipulated.